What formula is used?

This calculator uses four formulas: Devine, Robinson, Miller, and Hamwi. The Devine formula is one of the most widely used in clinical settings.

Is ideal weight the same as healthy weight?

Ideal weight formulas provide a general reference range. They do not account for muscle mass, bone density, or individual health conditions. Consult a healthcare professional for personalized advice.

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Ideal Weight Calculator

Calculate your ideal body weight using four medical formulas: Devine, Robinson, Miller, and Hamwi. Supports metric and imperial units.

Height (cm)

Sex

What is an Ideal Weight Calculator?

This tool estimates your ideal body weight using four widely referenced medical formulas. Since no single formula is universally accurate, showing all four alongside their average gives a practical reference range.

Formulas used

All formulas are based on height in inches above 5 feet (60 inches):

Formula	Male	Female
Devine	50 + 2.3 × inches over 5ft	45.5 + 2.3 × inches over 5ft
Robinson	52 + 1.9 × inches over 5ft	49 + 1.7 × inches over 5ft
Miller	56.2 + 1.41 × inches over 5ft	53.1 + 1.36 × inches over 5ft
Hamwi	48 + 2.7 × inches over 5ft	45.5 + 2.2 × inches over 5ft

Results are shown in kg or lbs depending on your selected unit.

Example use cases

Healthcare reference: Estimate ideal body weight before surgery or medication dosing
Fitness goals: Set a realistic target weight for a weight-loss journey
Nutrition planning: Use ideal weight to estimate protein and calorie needs